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Original Message
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| RE: carb. spacer. |
| By metraman - 03/29/2004 10:47:15 AM; IP 205.188.116.147 |
| thanks gerry for detailed response, my main reason for spacer is to reduce heat. i will use the closed venturi 1/2" plastic spacer w/ a 289 , 2v. alum. spacer, has a 3/8" vaccuum port, my orig. alum. 390 , 2v heat spacer. has a 5/8" vaccuum port, will my vacuum be reduced? venturi holes in manifold are same size as as 289 alum. spacer., my 390 alum. venturi holes are slightly larger, read first message. also vacuum slots in bottom ,underside of 289 alum. spacer has 1/4" notches for vacuum, where my old heat spacer has 3/8" slots for vacuum. should i notch these out to same size ?? thanks jeff |
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